All categories

3 years ago

The sum of r and 45 is 79.

Mathematics

2 answers:

Liula [17]3 years ago

8 0

$\huge{\boxed{r=34}}$

First, let's write this as an equation. The sum (addition) of $\bf{r}$ and $\bf{45}$ is [equal to] $\bf{79}$ .

$r+45=79$

Now, we need to get the variable by itself on one side of the equals sign. We can do this by subtracting $45$ from each side.

$\boxed{r=34}$

prisoha [69]3 years ago

3 0

Answer:

Step-by-step explanation:

You might be interested in

The perimeter of a rectangle is 400 yards. What are the dimensions of the rectangle if the length is 90 yards more than the wid

mihalych1998 [28]

X+90 = length
x=width
4x+180=400
4x=220
x=55

The width is 55 yards and the length is 145 yards

6 0

4 years ago

Solve the equation and show all work. 4|x + 1/3| = 20 <br> i'm kind of stuck hhh

34kurt

Absolute value is a function that takes some number and outputs the size of that number, regardless of the sign. By definition, $|x|=x$ if $x\ge0$ , and $|x|=-x$ if $x$ .

For example,

|2| = 2 because the input 2 is positive, so the input is unchanged;
|-3| = -(-3) = 3 because the input -3 is negative, so the sign is switched.

What this means for this problem is that there are two cases to consider:

If $x+\frac13\ge0$ , then $\left|x+\frac13\right|=x+\frac13$ , so that

$4\left(x+\dfrac13\right)=20\implies x+\dfrac13=5\implies\boxed{x=\dfrac{14}3}$

On the other hand, if $x+\frac13$ , then $\left|x+\frac13\right|=-\left(x+\frac13\right)$ , so

$-4\left(x+\dfrac13\right)=20\implies x+\dfrac13=-5\implies\boxed{x=-\dfrac{16}3}$

6 0

4 years ago

What is the solution to 2/3x +8/3=2x

Anika [276]

Answer:

Step-by-step explanation:

2/3x + 8/3 = 2x

multiplicate each by 3 : 2x + 8 = 6x

Put all the x on the same side : 8 = 4x

divide each by 4 : 2 = x

x = 2

5 0

4 years ago

While your family is visiting deep creek lake you and your mother decide to go boating. The Rangers charge $6.50 per hour in add

Fynjy0 [20]

Answer:

The Linear equation is $Total \ Cost = 25+6.5h$

The Total Cost to rent canoe is $44.5.

Step-by-step explanation:

Given:

deposit to rent a canoe = $25.00

Hourly charge for visiting deep creek lake = $6.50 per hour

we need to rent the canoe from 12:30 to 3:30 PM.

We need to find the total cost to rent the canoe.

Now Total number of hours (h) 12:30 to 3:30 PM = 3 hours

Hence Total Cost will be equal to deposit to rent a canoe plus Hourly charge for visiting deep creek lake multiplied by number of hours to visit.

Hence framing in equation form we get;

Total Cost to rent canoe = $25+6.5\times h$

hence the Linear equation is $Total \ Cost = 25+6.5h$

Solving the equation we get;

Total Cost = $25+6.5\times3 =25 +19.5 = \$44.5$

Hence the Total Cost to rent canoe is $44.5.

6 0

3 years ago

Simplify.<br>y^5 ÷ y^3 × y^2 <br>NEED HELP ASAPP PLEASEEE ??? <br>Will get BRAINLIEST***

Volgvan

Answer:

y^5 ÷ y^3 * y^2 = y^4

Step-by-step explanation:

https://www.symbolab.com/solver/factor-calculator/Simplify%20y%5E%7B5%7D%5Cdiv%20y%5E%7B3%7D%C3%97y%5E%7B2%7D%20

(use that link if you want to see the work for yourself)

3 0

4 years ago